NDLI: A Three-Phase Off-Line Switching Power Supply with Unity Power Factor and Low TIF

Content Provider	IEEE Xplore Digital Library
Author	Gauger, Dan Froeschle, Tom Illingworth, Lewis Rhyne, Earl
Copyright Year	1986
Description	Author affiliation: Consultant, 14 Laurel Lane, RFD *2, Exeter, NH 03833 (Illingworth, Lewis) \|\| Permace Associates, 7 Walnut St., Millis, MA 02054 (Rhyne, Earl) \|\| BOSE Corporation, The Mountain, Framingham, MA 01701 (Gauger, Dan; Froeschle, Tom)
Abstract	A new three-phase off-line switching AC/DC converter is described, one which draws essentially sinusoidal AC currents from the input line and therefore generates a very low TIF (Telephone Influence Factor) in the three-phase line currents. The converter consists of three two-stage power processors, the first stage of each performing the unity power factor conversion and the second stage providing isolation and combining the power to a single DC output. The converter easily can be reconfigured to operate from either a single-phase or three-phase (wye or delta) input line. In addition to providing the benefits of unity power factor operation (i.e., good power utilization of source volt-ampere capacity, negligible harmonic currents and low TIF), the converter can operate from a wide range of input voltages because it minimizes voltage stresses to which power switches are exposed. The power stages and control circuits used in a 2 KW implementation of the converter are described and modeled. Some measurements demonstrating the operation of the converter are presented.
Starting Page	115
Ending Page	121
File Size	8275290
Page Count	7
File Format	PDF
ISBN	096923161X
DOI	10.1109/INTLEC.1986.4794415
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1986-10-19
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Power supplies Reactive power Voltage DC-DC power converters AC generators DC generators Telephony Power system harmonics Switching converters Stress
Content Type	Text
Resource Type	Article

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